22444689 has 4 divisors (see below), whose sum is σ = 29926256. Its totient is φ = 14963124.

The previous prime is 22444687. The next prime is 22444691. The reversal of 22444689 is 98644422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (22444687) and next prime (22444691).

It is not a de Polignac number, because 22444689 - 2¹ = 22444687 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (22444687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3740779 + ... + 3740784.

It is an arithmetic number, because the mean of its divisors is an integer number (7481564).

Almost surely, 2^22444689 is an apocalyptic number.

It is an amenable number.

22444689 is a deficient number, since it is larger than the sum of its proper divisors (7481567).

22444689 is an equidigital number, since it uses as much as digits as its factorization.

22444689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7481566.

The product of its digits is 110592, while the sum is 39.

The square root of 22444689 is about 4737.5826114169. The cubic root of 22444689 is about 282.0792870964.

The spelling of 22444689 in words is "twenty-two million, four hundred forty-four thousand, six hundred eighty-nine".